Distribution and taxonomic identity of the species of Narcine (Toperdiniformes: Narcinidae) in the southwestern Atlantic Ocean

Autor(es)

Goncalves Araujo, Marcus Vinicius ; Rosa, Ricardo de Souza ; Capretz Batista da Silva, Joao Paulo

• Tipo de documento: Artigo Científico
• Fonte: Journal of Fish Biology; v. N/A, p. 7-pg., 2025-06-08.

Resumo

The genus Narcine is the most diverse among electric rays of the order Torpediniformes and is also the only electric ray genus with more than one species occurring in South American waters: Narcine brasiliensis and Narcine bancroftii. The first species has been historically described as distributed from Brazil's southeast coast down to northern Argentina, whereas the latter is distributed from northern South America to Central America, and the southernmost coast of North America. This revision of occurrences of the genus for the coast of Brazil, with focus on the northeast region, expands the range of distribution of both species. These species were previously considered to have very distinct areas of occurrence but actually present some degree of overlap on their distributional areas, with the northeast coast of Brazil acting as the intersection of both species' range of occurrence. Additionally, this study discusses the diagnostic characteristics for identifying Narcine species and highlights the historical scientific bias surrounding this group and how it ultimately can lead to a misrepresentation of its geographic distribution and conservation status. (AU)

• Processo FAPESP: 10/52677-6 - Filogenia dos principais grupos de chondrichthyes baseada na anatomia comparada do esqueleto das nadadeiras e suas cinturas.
• Beneficiário: João Paulo Capretz Batista da Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 05/52985-4 - Delimitação da espécie Potamotrygon falkneri Castex & Maciel, 1963, a partir da análise taxonômica do complexo falkneri-castexi (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
• Beneficiário: João Paulo Capretz Batista da Silva
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 24/14599-6 - Evolução de tempo profundo dos músculos cranianos de Chondrichthyes
• Beneficiário: Marcus Vinicius Gonçalves Araújo
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 07/52193-6 - Revisão taxonômica e morfológica do complexo Potamotrygon orbignyi (Castelnau, 1855) (Chondrichthyes: Myliobatoformes): Potamotrygonidae
• Beneficiário: João Paulo Capretz Batista da Silva
• Modalidade de apoio: Bolsas no Brasil - Mestrado